From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Sat, 4 Oct 2014 15:11:04 +0000 (+0900)
Subject: Remove unneeded length check to avoid the potential of a dereference of
X-Git-Tag: v3.1.900a~193
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7074cd33a80d8a3625534922a3d3f6e805175c9;p=thirdparty%2Flibarchive.git

Remove unneeded length check to avoid the potential of a dereference of
null pointer.
---

diff --git a/libarchive/archive_write_add_filter_lz4.c b/libarchive/archive_write_add_filter_lz4.c
index 309a8ae00..87b3f552e 100644
--- a/libarchive/archive_write_add_filter_lz4.c
+++ b/libarchive/archive_write_add_filter_lz4.c
@@ -418,7 +418,7 @@ lz4_write_one_block(struct archive_write_filter *f, const char *p,
 	struct private_data *data = (struct private_data *)f->data;
 	ssize_t r;
 
-	if (p == NULL && length == 0) {
+	if (p == NULL) {
 		/* Compress remaining uncompressed data. */
 		if (data->in_buffer == data->in)
 			return 0;